Oracle Linux 10 : kernel (ELSA-2026-88477)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2026-88477.
##

include('compat.inc');

if (description)
{
  script_id(372070);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/26");

  script_cve_id(
    "CVE-2025-38147",
    "CVE-2026-64048",
    "CVE-2026-64114",
    "CVE-2026-64266",
    "CVE-2026-64481",
    "CVE-2026-64572",
    "CVE-2026-68202",
    "CVE-2026-68236",
    "CVE-2026-68245",
    "CVE-2026-68278",
    "CVE-2026-68448",
    "CVE-2026-80536",
    "CVE-2026-80590",
    "CVE-2026-80887",
    "CVE-2026-89791",
    "CVE-2026-89811",
    "CVE-2026-93817",
    "CVE-2026-97493"
  );

  script_name(english:"Oracle Linux 10 : kernel (ELSA-2026-88477)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Oracle Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in
the ELSA-2026-88477 advisory.

    - drm/amdgpu: Bound GPIO I2C table entry count from VBIOS (Anusha Srivatsa) [RHEL-278280] {CVE-2026-97493}
    - drm/amdkfd: Add TLB flush after MES queue eviction/suspension (CKI Backport Bot) [RHEL-262095]
    {CVE-2026-89811}
    - drm/amd/display: set new_stream to NULL after release (CKI Backport Bot) [RHEL-260540] {CVE-2026-68236}
    - drm/vmwgfx: use check_add_overflow for shader size+offset bound (CKI Backport Bot) [RHEL-258141]
    {CVE-2026-80887}
    - drm/amdgpu: fix lifetime issue of amdgpu_vm_get_task_info_pasid() (CKI Backport Bot) [RHEL-236244]
    {CVE-2026-68245}
    - drm/dp/mst: fix buffer overflows in sideband chunk accumulation (CKI Backport Bot) [RHEL-240855]
    {CVE-2026-68278}
    - xfs: bounds-check buffer log item's dirty bitmap (Pavel Reichl) [RHEL-253369] {CVE-2026-80536}
    - Fix use-after-free when perf mmap() revival races with the last munmap() (Vratislav Bendel)
    [RHEL-270808] {CVE-2026-89791}
    - perf: Fix addr_filter_ranges lifetime (Vratislav Bendel) [RHEL-271846] {CVE-2026-93817}
    - ovl: check access to copy_file_range source with src mounter creds (Miklos Szeredi) [RHEL-238867]
    {CVE-2026-68448}
    - inet: frags: strip GSO state from fragments before reassembly (Jamie Bainbridge) [RHEL-254213]
    {CVE-2026-80590}
    - ipv4: fib: free fib_alias with kfree_rcu() on insert error path (Jamie Bainbridge) [RHEL-233130]
    {CVE-2026-64572}
    - ipv4: raw: reject IP_HDRINCL packets with ihl < 5 (Jamie Bainbridge) [RHEL-225476] {CVE-2026-64114}
    - ALSA: seq: close a re-opened queue timer in the destructor (CKI Backport Bot) [RHEL-263699]
    {CVE-2026-68202}
    - calipso: unlock rcu before returning -EAFNOSUPPORT (CKI Backport Bot) [RHEL-257678] {CVE-2025-38147}
    - calipso: Don't call calipso functions for AF_INET sk. (CKI Backport Bot) [RHEL-257678] {CVE-2025-38147}
    - fuse: re-lock request before returning from fuse_ref_folio() (CKI Backport Bot) [RHEL-234249]
    {CVE-2026-64266}
    - ALSA: hda/cs35l41: Fix firmware load work teardown (CKI Backport Bot) [RHEL-234100] {CVE-2026-64481}
    - net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot (CKI Backport Bot) [RHEL-230097]
    {CVE-2026-64048}
    - ipv4: validate checksum_start before completing checksum (CKI Backport Bot) [RHEL-280590]
    {CVE-2026-99999}
    - signal: Prevent exec() race (Phil Auld) [RHEL-282048] {CVE-2026-98256}
    - exec: Cleanup POSIX timers right after de_thread() (Luiz Capitulino) [RHEL-282070] {CVE-2026-98260}
    - smb: client: reject a tree connect response whose byte count is too small (CKI Backport Bot)
    [RHEL-271291] {CVE-2026-89631}
    - smb: client: fix OOB read/write from unvalidated DataOffset in coalesce_t2() (Frank Sorenson)
    [RHEL-271484] {CVE-2026-89633}
    - sctp: validate cookie AUTH state before use (Xin Long) [RHEL-254315] {CVE-2026-74752}
    - sctp: stop processing a packet once its association is deleted (Xin Long) [RHEL-254315] {CVE-2026-89479}
    - sctp: avoid auth_enable sysctl UAF during netns teardown (Xin Long) [RHEL-258778] {CVE-2026-68162}
    - sctp: keep chunk->transport in step with the list it is queued on (Xin Long) [RHEL-254353]
    {CVE-2026-74588}
    - usb: typec: ucsi: validate connector number in ucsi_connector_change() (Desnes Nunes) [RHEL-259412]
    {CVE-2026-63958}
    - usb: typec: tcpm: bound altmode_desc[] per iteration in svdm_consume_modes() (Desnes Nunes)
    [RHEL-259412] {CVE-2026-63962}
    - usb: typec: tcpm: validate VDO count in Discover Identity ACK handlers (Desnes Nunes) [RHEL-259412]
    {CVE-2026-63963}
    - usb: typec: altmodes/displayport: validate count before reading Status Update VDO (Desnes Nunes)
    [RHEL-259412] {CVE-2026-63961}
    - Bluetooth: hci_sync: Fix advertising data UAFs (CKI Backport Bot) [RHEL-254672] {CVE-2026-74509}
    - openvswitch: vport: fix self-deadlock on release of tunnel ports (CKI Backport Bot) [RHEL-253867]
    {CVE-2026-31678}
    - openvswitch: defer tunnel netdev_put to RCU release (CKI Backport Bot) [RHEL-253867] {CVE-2026-31678}
    - tipc: fix slab-use-after-free Read in tipc_aead_decrypt_done (Xin Long) [RHEL-228912] {CVE-2026-63801}
    - tipc: clear sock->sk on the failed-insert path in tipc_sk_create() (Xin Long) [RHEL-238046]
    {CVE-2026-68117}
    - sctp: fix race between sctp_wait_for_connect and peeloff (Xin Long) [RHEL-229479] {CVE-2026-63971}
    - sctp: diag: reject stale associations in dump_one path (Xin Long) [RHEL-231579] {CVE-2026-52917}
    - sctp: validate stream count in sctp_process_strreset_inreq() (Xin Long) [RHEL-236158] {CVE-2026-68315}
    - sctp: fix auth_hmacs array size in struct sctp_cookie (Xin Long) [RHEL-237097] {CVE-2026-68376}
    - sctp: auth: verify auth requirement when auth_chunk is NULL (Xin Long) [RHEL-237097] {CVE-2026-68300}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://linux.oracle.com/errata/ELSA-2026-88477.html");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2025-38147");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2025/07/03");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/10/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/26");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:10:2:baseos_patch");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-abi-stablelists");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-cross-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-devel-matched");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-modules-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-modules-extra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-uki-virt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-devel-matched");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-modules-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-modules-extra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-modules-extra-matched");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools-libs-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uki-virt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uki-virt-addons");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libperf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python3-perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rtla");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rv");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Oracle Linux Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("linux_alt_patch_detect.nasl", "ssh_get_info2.nasl");
  script_require_keys("Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/local_checks_enabled");

  exit(0);
}


include('rpm2.inc');
include('ksplice.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:os_product)) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');
if (! preg(pattern:"^10([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'Oracle Linux 10.x', 'Oracle Linux ' + os_version);

if (!get_kb_item('Host/RedHat/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);

var machine_uptrack_level = get_one_kb_item('Host/livepatch-kernel-version');
var livepatch_source = get_one_kb_item('Host/livepatch-kernel-source');
if (empty_or_null(livepatch_source)) livepatch_source = 'KSplice';

if (machine_uptrack_level)
{
  var trimmed_uptrack_level = ereg_replace(string:machine_uptrack_level, pattern:"\.(x86_64|i[3-6]86|aarch64)$", replace:'');
  var fixed_uptrack_levels = ['6.12.0-211.68.1.el10_2'];
  foreach var fixed_uptrack_level ( fixed_uptrack_levels ) {
    if (rpm_spec_vers_cmp(a:trimmed_uptrack_level, b:fixed_uptrack_level) >= 0)
    {
      audit(AUDIT_PATCH_INSTALLED, livepatch_source + ' hotfix for ELSA-2026-88477');
    }
  }
  __rpm_report = 'Running ' + livepatch_source + ' level of ' + trimmed_uptrack_level + ' does not meet the minimum fixed level of ' + join(fixed_uptrack_levels, sep:' / ') + ' for this advisory.\n\n';
}

var kernel_major_minor = get_kb_item('Host/uname/major_minor');
if (empty_or_null(kernel_major_minor)) exit(1, 'Unable to determine kernel major-minor level.');
var expected_kernel_major_minor = '6.12';
if (kernel_major_minor != expected_kernel_major_minor)
  audit(AUDIT_OS_NOT, 'running kernel level ' + expected_kernel_major_minor + ', it is running kernel level ' + kernel_major_minor);

var constraints = [
  {
    'release': '10',
    'pkgs': [
      {'reference':'kernel-cross-headers-6.12.0-211.68.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-headers-6.12.0-211.68.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-6.12.0-211.68.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-6.12.0-211.68.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-devel-6.12.0-211.68.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libperf-6.12.0-211.68.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'perf-6.12.0-211.68.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-perf-6.12.0-211.68.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rtla-6.12.0-211.68.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rv-6.12.0-211.68.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-abi-stablelists-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-core-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-cross-headers-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-core-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-devel-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-devel-matched-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-modules-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-modules-core-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-modules-extra-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-uki-virt-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-devel-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-devel-matched-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-headers-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-modules-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-modules-core-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-modules-extra-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-modules-extra-matched-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-devel-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-uki-virt-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-uki-virt-addons-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libperf-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'perf-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-perf-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rtla-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rv-6.12.0-211.68.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');

var flag = 0;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
  # Check that the target release is equal to the affected release
  if (!empty_or_null(constraint['release'])){
    if (constraint['release'] != os_release) continue;
  }
  if (!empty_or_null(constraint['sp'])){
    if (constraint['sp'] != os_sp) continue;
  }
  foreach var pkg ( constraint['pkgs'] ) {
    reference = NULL;
    sp = NULL;
    _cpu = NULL;
    el_string = NULL;
    rpm_spec_vers_cmp = NULL;
    epoch = NULL;
    allowmaj = NULL;
    exists_check = NULL;
    cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        ## (no known rpm to check OR known rpm_exists)
        (!exists_check || rpm_exists(rpm:exists_check)) &&
        rpm_check(sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'kernel / kernel-abi-stablelists / kernel-core / etc');
}